Finishing-machine for glass articles.



Patented May 29, 1900.

W. STEWART.

FINISHING MACHINE FUR GLASS ARTICLES,

(Application filed Ju ky 3, 1899.) ,No Model.) 2 Sheets-Sheet I.

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No. 650,433. Pafented May 29, I900.'

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FINISHING MACHINE FOR GLASS ARTICLES.

(Application flledJuly 3, 1899.)

2 SheetsSheet 2.

(No Model.)

' W/TNESSES,

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ATTORNEY.

; UNITED STATES WILLIAM PATENT Curios.

STENVART, OF IVHEELING, WEST VIRGINIA, ASSIGNOR OF ONE IIALF TO IVILLIAMP. CLARKE, OF MUNCIE, INDIANA.

FINISHING-MACHINE F OR GLASS ARTICLES.

SPEGIFIOATION forming part of Letters Patent N 0. 650,433, dated May 29,1900.

Application filecl July 3,1899. Serial No. 722,645. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM STEWART, a citizen of the United States,residing at Wheeling, county of Ohio, and State of West Virginia, haveinvented a new'and useful Finishing-Machine for Glass Articles, of

drawings, wherein like letters of reference in dicate correspondingviews, and in which Figure 1 is a side elevation of my improved machine.Fig. 2 is a top plan View of the same. Fig. 3 is a section on the line 33, Fig.

parts in the several 2. Fig. 4 is a section on the line at 4:, Fig. 2..

Fig. 5 is a top plan view of the plate for moving the formers, and Fig.6 is a detail sec.-'

tional view of the universal connection between the shoe and itssupporting-shaft.

In the drawings, A designates a table which is supported on the legs A.B designates a plate which rests on top of the table A.

C designates a cover over the plate 13. This cover is supported on thelegs O,which rest on the table, and is securedin place by means of thebolts 0''.

D designates a shaft which extends up through the table, through theaperture 13 in the plate, and through the cover. on top of this shaft isthe supporting-block D for supporting the ware to be formed andfinished, ashereinafter described. This shaft is secured in position bymeans of the collar E, which has a shoulder E at its upper end Thisshoulder engages a bushing E, which is secured to the table A, asplainly shown in Fig. 4. The shaft passes through this collar and isheld in its ad jnsted position by means of the set-screws E. By thisconstruction the shaft can be adjusted to any desired Supported heightand held firmly in its adjusted position for a purpose hereinafterdescribed.

F designates the finishing and shaping rolls. 1 preferably use four ofthese rolls,

although it is evident that I could use a greater or less number. Theserolls are supported on the shafts F, which pass through blocks F and Fand through the plate 13. The upper block F rests on the cover C, and

the lower block is hung to the table by means of the shoulder a, whichengages a cut-away portion on the table. These shafts are secured intheir position by means of the setscrews F, which pass through theblocks and engage the shafts. It will readily be seen that byunloosening the screws the shafts can be withdrawn and another shape offormer placed on the shaft other than the one shown in the drawings andthe shafts put back and secured in place.

The shafts pass through grooves H in the plate B. By referring to Fig. 5it will be noticed that there are four grooves, one for each shaft.These slots start from near the outer edge of the plate and curve inwardto near the center. The blocks F slide in slots G in the cover 0 and theblocks F slide in slots G in the table, so that when the plate is turnedto the left, as shown by the arrow,

rolls will be forced inward against the article to be finished andformed and the parts will assume the position shown in Fig. 4,

Fig. 5, and the shafts engage the slots, the shafts carrying the shapingand finishing when-the shaft D will be revolved in a mannerto bedescribed hereinafter and the article is given the required shape andfinished for themarket. The machine is adapted to finish-and shapepressed articles which have straight sides, and when the convex rolls F0 are brought up against the ware it will make the ware have concavesides. It is to be understood that while I have shown this style offinisher and former to make an article with a concave side I do notdesire to limit my- 5 self to this shape, as it is evident that anystyle of finisher and former can be placed on the shaft, as hereinbeforedescribed.

The article to be finished and shaped is first reheated and placed onthe supporting-block IOO D in an inverted position, as shown in Fig. 4.The supporting-block is held on the shaft D by means of the set-screw dand can be removed and a larger or smaller one secured thereon, ifdesired.

The plate B is revolved by means of the handle B, which is secured in asocket B on the side of the plate. I) designates a pin arranged in thepath of the handle for stopping the plate in the required position. Thispin can be placed in any one of the series of apertures b on the tableA. In some instances when forming and finishing small articles it willbenecessary for the handle to pass beyond the post 0. I therefore make thehandle removable and provide four apertures in the side of the plate, inany one of which the handle can be secured.

Idesignates a plate surrounding the shaft D, which has an annularportion I extending downward through the cover and plate B, which actsas a bushing for the shaft. This plate is adapted, as shown in Fig. 4,to engage the inner face of the article to be finished and shaped andwill prevent the edge of the article from being pressed in. This plateis removable and can be dispensed with, if found necessary, in finishingand shaping other styles of articles.

Motion is imparted to the shaft D by means of a bevel gear-wheel K,which is keyed on the shaft and is supported by means of the block K,which rests on the cross-piece A". This gear-wheel meshes with a bevelgearwheel L, which is mounted on a shaft L. On the opposite end of thisshaft is a hand wheel L for imparting motion to the shaft. The shaft issupported by means of the standard L, resting on the cross-piece A". Ittakes but a few revolutions of the hand-wheel to rotate the shaft D,carrying the article to be finished and shaped, sufiiciently to finishthe article.

To steady the article on the support D while the shaft is beingrevolved, I provide a shoe M, which has an asbestosbottom m,

which bears against the bottom of the article to be finished and shaped,as shown in Fig. 4. This shoe is secured to a shaft M", which has asliding connection with a lever N. The shaft is provided with a shoulderM, and

' between this shoulder and the lever is interextends from the top of apost R, secured to the collar, to the free end of the lever N. Thisspring acts as a check when the lever is lowered against the article tobe finished, so that the lever will not be lowered too quickly, therebybreaking the article, and will raise the lever after the finishing hasbeen done.

The article which is to be finished sometimes has an uneven bottom, andfor that reasonI provide the shoe M with a universal connection with theshaft M. This is accomplished by the construction illustrated in Fig. 6.The shoe M is provided with a socket having a rounded bottom in whichrests the end of the shaft M, which is provided with a rounded end. Theshaft is provided with an annular groove, and in this groove pro- 'jectsthe end of the set-screw m for holding the shoe to the shaft. Thediameter of the set-screw is less than the width of the groove, so thatthe shoe can have a swivel motion on the shaft. By this constructionwhether the bottom of the article to be finished has an even bottom ornot the shoe will always rest firmly thereon and hold the article on thesupport.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, isv I 1. In a glass-finishing machine, thecombination with a rotatable shaft adapted to carry the article to befinished, of a series of finishing-rolls surrounding the shaft, and arotatable plate connected to the finishing rolls adapted tosimultaneously move the rolls to- Ward and from the shaft.

2. In a glass-finishing machine, the combination with a table, of aplate resting on the table, provided with a curved slot extending fromnear the outer edge of the plate to a point adjacent the center thereof,a rotatable shaft extending up through the table and plate, a shaftengaging the slot in the plate, and a finishing-roll mounted on the saidshaft.

3. In a glass-finishing machine, the combination with a table of a plateresting on the table, provided-Jwith a slot extending from near theouter edge of the plate to a point adjacent the center thereof, arotatable shaft extending .up through the table and plate, a shaftengaging the slot in the plate, a finishing-roll mounted on the saidshaft, and means for limiting the movement of the plate.

4. In a glass-finishing machine, the combination with a shaft adapted tocarry the article to be finished, of a shoe adapted to hold the articleon the shaft when being finished, a movable support for the shoe, meansfor locking the shoe in its adjusted position and a universal jointbetween the shoe and its support. I

In testimony whereof I have hereunto affixed my signature in thepresence of two witnesses.

\VILLIAM STE\VART.

